White-headed Woodpeckers can be found in coniferous forests of the western United States. They feed on insects and pine seeds. These woodpeckers rarely hammer on trees, instead using their beaks to probe for insects under cracks in tree bark and chip into pinecones. Occasionally they will insert a whole pine seed into a crack in a tree’s bark and strike the seed with their beak to break into it. Both male and female birds incubate the eggs in tree hollows and will often communicate with each other by tapping on the interior or exterior of the nesting cavity.